Technica,

Any time you use any kind of scripting in your navigation it is a good idea to repeat your main navigation links in plain text (ususally at the bottom of the page). There are few javascripts which work (well) in ALL browsers and while redundancy may be boring it does ensure that every visitor will be able to see what you want him to see.

Btw...I'm on a PC and IE at the moment and there are no rollovers (?)

Good luck!
gg